General
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Target
http://google.com]
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Sample
240418-w4ww2abd88
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://google.com]
Resource
win10-20240404-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___NFYMX_.txt
cerber
http://xpcx6erilkjced3j.onion/4FB5-3DE8-C204-0098-BA7A
http://xpcx6erilkjced3j.1n5mod.top/4FB5-3DE8-C204-0098-BA7A
http://xpcx6erilkjced3j.19kdeh.top/4FB5-3DE8-C204-0098-BA7A
http://xpcx6erilkjced3j.1mpsnr.top/4FB5-3DE8-C204-0098-BA7A
http://xpcx6erilkjced3j.18ey8e.top/4FB5-3DE8-C204-0098-BA7A
http://xpcx6erilkjced3j.17gcun.top/4FB5-3DE8-C204-0098-BA7A
Extracted
C:\Program Files\7-Zip\DECRYPT_YOUR_FILES.HTML
Targets
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Target
http://google.com]
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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Modifies WinLogon for persistence
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Renames multiple (1007) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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mimikatz is an open source tool to dump credentials on Windows
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Contacts a large (1117) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Disables Task Manager via registry modification
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Modifies Windows Firewall
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3